LMX2615-SP: Delay of RFout and SysrefReq

Hello Team TI,

We have query regarding about RFoutA/B and Delay.

We want to use the output as follows, like Datasheet fig.29 of LMX2615.

Is it possible in this case?

　RFoutA：1GHz

　RFoutB：Use SysRefReq pin (3kHz), SYSREF out  add  500ps ( 1/2 RFoutA clock) Delay

And, We want to change the amount of delay in RFoutB from time to time. (If possible, every 1k to 3kHz) 

How does RFout A / B behave when the RFoutB delay settings are changed?

Is there noise in this time ? Need to stop the output?

Is the Delay step size only 9ps as shown in "Table 14. SYSREF Setup"?  Can it be changed?

From Table 14&15, the RFoutB delay calculation is SysRef Delay = 9ps * SYSREFPHASESHIFT (= 0 ~ 247).

For example, 500ps ≒ 9ps * 55

Thank You